1992-1999Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and
common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres
Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

I have gone through the many pages about this, and unfortunatley seems like everyone found a different problem. Trying to figure out mine. I have a graph from a AutoXray scanner, and having problems pinning the problem. Has happened the past few weeks in cold temps about 25F through 60F. No SES light. TCC is locked during the problem, unsure about TCC duty cycle range should be at. No bad cyclinders are showing, so I assume at this point no misfire. Any help would be great, if you need other readings I can get them.

Plugs are AC Delco, wires not possitive but both changed about 1.5yrs ago. I guess it might be about time for a new set. I took off the boots on the coils and they look fine. I plan on diving deeper into it on thursday, first day off work.